Jeff Weather Forecast

    • 51
    • 74

    Mostly Cloudy

    • 47
    • 61

    Mostly Cloudy

    • 54
    • 66

    Mostly Cloudy

    • 56
    • 70

    Partly Sunny

    • 53
    • 74

    Chance Rain Showers

    • 55
    • 72

    Chance Rain Showers

    • 55
    • 70

    Chance Rain Showers

Today 25 Oct McHenry

Mostly cloudy with a 40 percent chance of Showers. Highs in the upper 60s.

Tonight 25 Oct McHenry

Mostly cloudy. Patchy fog late. Lows in the lower 50s. Southwest Winds around 5 Mph, becoming north after midnight.

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Jeff Temperature Statistics

October Temperature

Chicago / Wheeling, Pal-Waukee Airport (18.6 miles)

  • Lowest 17 October, 2026

    37.7 °F

  • Average October

    60.1 °F

  • Highest 12 October, 2026

    88.6 °F

Climate (2021–2026)

Chicago / Wheeling, Pal-Waukee Airport (18.6 miles)

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.5 °F
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